The Russian military unleashed its might in Syria, pounding an Islamic State stronghold with missiles Tuesday as officials revealed that a second suspect in the Paris attacks was on the loose.

The unlikely alliance between Presidents Vladimir Putin and Francois Hollande came as Russian officials finally declared a terrorist bombing took down a Russian tourist plane last month over Egypt. The blast killed all 224 people board Metrojet Flight 9268, with Putin — like Hollande after last Friday’s terrorist attack in Paris — vowing vengeance.

The attacks “must be intensified in such a way that the criminals understand that retribution is inevitable,” Putin said.

Armed guards at the Eiffel Tower, which was shut down Tuesday afternoon over a bomb threat that turned out to be a false alarm.

(Frank Augstein/AP)

French President Francois Hollande called Tuesday for the EU to band together against ISIS.

The aircraft carrier Charles de Gaulle leaves Thursday from France with the increased air power, nearly a week after the synchronized slaughter that left 129 people dead and another 352 injured at Paris restaurants, a concert hall and a soccer stadium.

Seven of the terrorists were suicide bombers who killed themselves in the middle of the attack. The massive manhunt includes Salah Abdeslam and a second unidentified fugitive.

Two women stand at a memorial outside the Petit Cambodge restaurant, a site of one of the Paris attacks.

(Daniel Ochoa de Olza/AP)

Flowers outside the Carillon cafe, another attack site.

(Daniel Ochoa de Olza/AP)

Memorials outside the Petit Cambodge and the Carillon cafe, two restaurants that were attacked.

The second man appears in surveillance video on a Paris sidewalk obtained by the Associated Press. Two men were wearing black and carrying assault rifles, while a third was in a nearby car.

The fallout from the Friday night rampage through Paris was felt at a soccer match in Germany. The Netherlands-Germany showdown set for the northern city of Hannover was canceled Tuesday amid reports of a terrorist plot. Officials denied reports that an ambulance filled with explosives was found outside the stadium.